The prodrug dipivefrin is converted to this compound in a treatment for open-angle glaucoma no longer available in the US. This compound is added to local anesthetics to both increase their duration and reduce bleeding. (15[1])A methyl group in this compound is replaced with an isopropyl group in the bradycardia medication isoproterenol. This compound is only found in tissues that express (*) PNMT, which methylates its precursor. COMT converts this compound into (-5[1])metanephrine, elevated levels of which are indicative of pheochromocytoma. Although this compound is the namesake of alpha and beta receptors, it is not the principal sympathetic hormone. For 10 points, name this hormone produced in the medulla of a pair (10[1])of organs found above the kidneys. (10[2])■END■ (10[4]0[1])